Robbing any bank, let alone a Federal Reserve, is a federal crime and the FBI would be in charge of the investigation and arrest. The suspect would never have been on a bus being transported by deputies. He would have been in federal custody being escorted by US Marshalls.
The car is referred to as a Lamborghini. It is actually a Ferrari.
When Lopez and Grey have Boyd Taylor in the interrogation room his lawyer bursts in and demands to know why her client is being questioned after calling for his lawyer. Lopez relies "No one was asking any questions" but she did ask him "But this job was different, wasn't it?" at the start of the scene.